Hello,<br><br>I'm new to MPICH2 and am trying to write an MPI program to do some volume rendering. Right now, I have the master process broadcast the rendering parameters (viewing matrices, image dimensions, volume dimensions, etc) to the slaves. The slaves would then render some rows of the image based on their process ids and send their partially rendered images back to the master. However, when I try to run the program using two processes and two computers, I get an error in MPI_Recv where the master process is trying to retrieve all the partial images from the slave. Here's the error output:
<br><br>rank 1 in job 5 pcvaa13_36159 caused collective abort of all ranks<br> exit status of rank 1: killed by signal 11<br>[cli_0]: aborting job:<br>Fatal error in MPI_Recv: Other MPI error, error stack:<br>MPI_Recv(186).............................: MPI_Recv(buf=0x7fffffd5fb90, count=66048, MPI_UNSIGNED_CHAR, src=MPI_ANY_SOURCE, tag=MPI_ANY_TAG, MPI_COMM_WORLD, status=0x7fffffd80300) failed
<br>MPIDI_CH3_Progress_wait(212)..............: an error occurred while handling an event returned by MPIDU_Sock_Wait()<br>MPIDI_CH3I_Progress_handle_sock_event(413):<br>MPIDU_Socki_handle_read(633)..............: connection failure (set=0,sock=1,errno=104:Connection reset by peer)
<br><br>Any thoughts on how to fix this? <br><br>This happens before the slave has had a chance to finish rendering and send back anything. Could timing be an issue?<br><br>Thanks,<br>Sharon<br>